/* 网页主体 */
body {
    font-family: Arial, Helvetica, sans-serif;
}

/* 网页主容器 */
#container {
    background-color: #ffffff;
    height: 900px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* 网页头部 内容 页尾 */
#header {
    background-color: #ffffff;

    height: 50px;
    margin: 0 50px 0 50px;
    border: 1px solid #ffffff;
    padding: 0 50px 0 50px;

    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

#content {
    background-color: #ffffff;

    height: 600px;
    margin: 0 50px 0 50px;
    border: 1px solid #ffffff;
    padding: 0 0 0 0;

    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

#footer {
    background-color: #ffffff;

    height: 50px;
    margin: 0 50px 0 50px;
    border: 1px solid #ffffff;
    padding: 0 50px 0 50px;

    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

/* 头部元素属性 */
#header span {
    margin: 0;

    font-size: 1.2em;
    letter-spacing: 1px;
    font-weight: bold;
    color: #0f0f0f;
}

#header #header_links a {
    margin: 0;

    font-size: 1.2em;
    letter-spacing: 1px;
    font-weight: bold;
    text-decoration: none;
    color: #0f0f0f;
}

/* 内容标题区域属性 */
#title {
    margin: 60px 0 40px 0;
}

#title h1 {
    margin: 0;

    font-size: 2.2em;
    line-height: 36px;
    letter-spacing: 0;
    color: #0f0f0f;
    font-weight: bold;
}

/* 内容图片属性 */
#homepage_photos {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

#homepage_photos img {
    margin: 0 10px 0 10px;
    border: 2px solid #cecece;
}

#homepage_photos img:hover {
    margin: 0 10px 0 10px;
    border: 2px solid #0f0f0f;
}

/* 页尾元素属性 */
#footer p {
    margin: 0;

    letter-spacing: 1px;
    font-weight: normal;
    color: #0f0f0f;
}
